Dye adsorption alteration of anchoring properties of planar orienting films

Planar orienting polymeric films proved to have strong anchoring properties for nematic liquid crystals. Inserting a small quantity of azo-dye in a nematic liquid crystal 5CB changes the anchoring properties due to specific adsorption mechanisms. Measurements have been performed choosing several dye...

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Veröffentlicht in:Journal of Optoelectronics and Advanced Materials 2008-02, Vol.10 (2), p.363-368
Hauptverfasser: Dascalu, C, Uncheselu, C, Eseanu, N, Alexe-Ionescu, A L
Format: Artikel
Sprache:eng
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Zusammenfassung:Planar orienting polymeric films proved to have strong anchoring properties for nematic liquid crystals. Inserting a small quantity of azo-dye in a nematic liquid crystal 5CB changes the anchoring properties due to specific adsorption mechanisms. Measurements have been performed choosing several dye concentrations, cell thicknesses and different dyes. Anchoring strength dependence on the cell thickness has been investigated.
ISSN:1454-4164